Demographics & People — Griggsville, Illinois
Population Overview
| Population (Census) | 1,272 |
| Estimated 2026 | ~1,400 |
| Median Age | 42.4 |
| Total Households | 501 |
| Family Households | 330 |
| Average Household Size | 2.5 |
| Diversity Index | 0.1517 (relatively homogeneous) |
Race & Ethnicity
| White | 1,152 |
| Black or African American | 19 |
| Asian | 2 |
| Hispanic or Latino | 81 |
Heritage & Ancestry
| Group | Count |
| Unclassified or not reported | 611 |
| German | 270 |
| Other groups | 189 |
| American | 84 |
| English | 78 |
| Irish | 55 |
| Hispanic: Hispanic or Latino | 50 |
| Hispanic: Colombian | 40 |
| Hispanic: South American | 40 |
| Italian | 15 |
Language
| English Only | 1,173 |
| Spanish | 22 |
| Population 5+ | 1,214 |
Veterans
| Veterans | 116 |
| Population 18+ | 1,038 |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Griggsville, Illinois.